JP2000009309A - Petroleum combustion device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an automatic fire extinguisher from operating upon confirmation of the quantity of remaining oil by raising slightly a cartridge tank while maintaining a a safety. SOLUTION: This combustion device comprises a detachable cartridge tank 1, a tank housing part 2 for housing the cartridge tank 1 and a microswitch 5 having a lever which burns by pressing and stops its combustion by releasing the pressure. The entire vertical width of the side surface of the cartridge tank 1 serves as an operating surface on which the lever of the microswitch 5 is pressed. The pressure on the lever is not cancelled only by slightly moving the cartridge tank. Further, an auxiliary lever for increasing a working stroke is provided in the lever to stabilize the control of ON/OFF of the switch. Further, a relief mechanism is provided for preventing unreasonable external force from being applied to a microswitch main body or other parts when the lever is pressed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil-fired apparatus used for oil-fired equipment such as an oil fan heater and an oil stove and provided with a cartridge type oil supply tank for storing oil fuel such as kerosene therein.

[0002]

2. Description of the Related Art Conventionally, in the case of oil-fired equipment provided with a releasable cartridge tank and a tank storage part for storing the cartridge tank, when refueling, the cartridge tank is detached from the oil-fired equipment body and removed. Injecting petroleum fuel into the cartridge tank, and refilling the cartridge tank in the tank storage section of the oil-burning equipment has been performed. If the oil-burning device is burning at the time of refueling and the filler cap is removed from the cartridge tank due to a failure to install the filler cap, the fuel in the cartridge tank will splash on the device body, Not only does it stain the surroundings,
There has been a problem that a fire may be caused if it hits the burning part during burning.

Therefore, a switch for detecting the removal of the cartridge tank is provided in the main body of the apparatus. When the switch is pressed by the cartridge tank, the combustion is continued, and when the switch is released from the cartridge tank, the combustion is stopped. Petroleum-fired equipment has been devised with an automatic fire extinguishing device that is automatically stopped. In this device, a switch lever is protruded from one side of a tank storage section for storing a cartridge tank, and while the cartridge tank is stored in the tank storage section, the switch lever is pressed by a part of the cartridge tank. As a result, the burning of the oil burning equipment is continued. When the cartridge tank is removed from the tank storage section, the pressing of the switch lever is released and the combustion is stopped.

[0004] The above-described conventional oil-fired equipment is described below with reference to FIG.
A description will be given based on FIG. FIG. 6 is a view in which the cartridge tank 1 is stored in the tank storage section 2, and FIG. 7 is a view in which the cartridge tank 1 is slightly lifted.
As shown in FIG. 7, since the cartridge tank 1 is slightly lifted from the tank storage section 2, when the cartridge tank 1 is slightly lifted as shown in FIG. The pressing of the lever 21a is released, whereby the automatic fire extinguishing device operates to stop the combustion. Reference numeral 9 denotes a handle provided at one end of the cartridge tank 1, reference numeral 10 denotes a filler cap removably attached to a filler port (not shown) provided at the other end of the cartridge tank 1, and reference numeral 7 denotes a tank storage unit. 2
Is an oil pan installed at the lower part of the oil pan.
Petroleum fuel in the cartridge tank 1 is supplied via the filler cap 10.

[0005]

By the way, in the above-described conventional oil-fired equipment, the lever 21a is released only by slightly lifting the cartridge tank 1, and the automatic fire extinguishing device is activated. 1
It is inconvenient to check the amount of residual oil. The amount of residual oil in the cartridge tank 1 can be empirically confirmed by its weight by slightly lifting the cartridge tank 1 by a user. Stopping the combustion by operating the device is not preferable in use.

The present invention has been made in view of the above situation, and has as its object to prevent the automatic fire extinguishing device from operating when checking the residual oil amount by slightly lifting the cartridge tank while maintaining safety. .

[0007]

In order to achieve the above object, according to the first aspect of the present invention, a removable cartridge tank, a tank storage section for storing the cartridge tank, and a switch are pressed. When the cartridge tank is housed in the tank housing part in an oil-fired appliance equipped with a micro switch that is linked to the removal of the cartridge tank so as to burn and stop the combustion when the switch is released. The upper side surface of the cartridge tank presses the microswitch.

According to the present invention, since the mounting position of the microswitch is set to the upper side, the full vertical width of the side surface of the cartridge tank becomes the operation surface of the lever pressing of the microswitch, and the operation surface is wide and the cartridge tank is slightly small. The force to press the lever is not released only by being moved.

According to a second aspect of the present invention, in the first aspect, the lever of the microswitch is provided with an auxiliary lever for increasing an operation stroke of the lever, and the auxiliary lever is provided to protrude into the tank storage portion, and the tank storage is provided. When the cartridge tank is stored in the cartridge storage unit, the auxiliary lever is pressed by the side surface of the cartridge tank, and when the cartridge tank is removed from the tank storage unit, the pressing on the auxiliary lever is released.

According to the present invention, since the auxiliary lever for increasing the stroke of the lever of the micro switch is provided,
Even if the gap between the tank storage section and the cartridge tank varies depending on the product, the pressing operation of the microswitch can be performed normally with the cartridge tank attached to the tank storage section. Further, even if the cartridge tank swings back and forth and right and left in the tank storage section, the pressing operation of the microswitch can be performed normally.

According to a third aspect of the present invention, in the first aspect, the lever of the microswitch is provided with an auxiliary lever for increasing an operation stroke of the lever, and the auxiliary lever is provided to protrude into the tank storage portion, and the tank storage device is provided. When the cartridge tank is housed in the portion, the auxiliary lever is pressed by the side surface of the cartridge tank, and a release mechanism is provided for releasing the pressing force when the side surface of the cartridge tank exceeds a position where the micro switch is operated. And

According to the present invention, since the pressing force of the elastic deformation of the auxiliary lever is absorbed, the lever of the microswitch is pressed by the side surface of the cartridge tank and, at the same time, the parts provided at the back of the microswitch are forcibly imposed. External force can be prevented from being applied.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a diagram in which the cartridge tank 1 is housed in a tank housing unit 2, and FIG. 2 is a diagram showing a state where the cartridge tank 1 is lifted. 1 and 2, reference numeral 1 denotes a cartridge tank;
The cartridge tank 1 has a handle 9 at one end thereof.
And a filler cap 10 is detachably attached to a filler port (not shown) on the other end side. 2
Reference numeral denotes a tank storage unit, and an oil receiving tray 7 to which petroleum fuel in the cartridge tank 1 is supplied via the filler cap 10 is provided below the tank storage unit 2. Reference numeral 3 denotes a tank guide which constitutes a part of the tank storage section 2, and has the same structure as that of the above-described conventional oil-burning apparatus. In the present invention, as shown in FIGS. 1 and 2, a micro switch 5 is provided above the tank guide 3.

FIG. 3 is a view showing an example of the micro switch 5. The micro switch 5 has a lever 5a.
While the is pressed, the burning of the oil burning equipment is continued,
When the pressing of the lever 5a is released, it functions to stop the combustion. However, this micro switch 5 generally has an operation stroke of several millimeters. If the micro switch 5 is mounted on the tank guide 3 as it is and the switch is turned on / off by storing the tank, the tank guide 3
If the accuracy of storing the tank is not within several millimeters, the control of stopping the combustion becomes extremely unstable. As a structure to cope with this, the microswitch 5 used in the present invention has a switch housing case 11 as shown in FIG.
(Hereinafter referred to as a storage case). FIG. 5 is an exploded perspective view of FIG. 4 and 5, reference numeral 15 denotes an auxiliary lever. The auxiliary lever 15 presses the lever 5a of the microswitch 5 to extend the operation stroke. The auxiliary lever 15 has a rotation shaft 15 a protruding laterally at one end, and is pivotally attached to a hole of the storage case 11. The terminal 5c is connected to the wiring board 13, and is welded to the wiring pattern by soldering. When an external force is applied to the upper action portion 15e of the auxiliary lever 15, the circular protrusion 15b presses the lever 5a with the rotation shaft 15a as a fulcrum, and presses the switch operating portion 5b of the micro switch 5 to operate the micro switch 5. At the same time, the lower action portion 15c hits the stopper 19, and the external force applied to the auxiliary lever 15 is absorbed by the elastic deformation of the auxiliary lever 15 so that no more force is applied to the microswitch 5, and the external force releasing mechanism operates.

Next, when there is no external force applied to the upper action portion 15e of the auxiliary lever 15, the auxiliary lever 15 is pushed back by the repulsive force of the lever 5a, and the angular projection 15d hits the edge of the storage case 11 and stops rotating. Until the auxiliary lever 15 rotates, the auxiliary lever 15 rotates counterclockwise in FIG.

In this manner, as shown in FIGS. 1 and 2, the microswitch 5 having the release mechanism is mounted so that the auxiliary lever 15 protrudes from one surface of the tank housing 2 for housing the cartridge tank 1. Then, the auxiliary lever 15 of the micro switch 5 is pressed on the side surface of the cartridge tank 1 according to the removal of the cartridge tank 1. Since the lever 5a is pressed while the cartridge tank 1 is stored in the tank storage section 2, the oil-fired equipment continues to burn. When the cartridge tank 1 is removed from the tank storage section 2 and the side surface of the cartridge tank 1 is separated from the auxiliary lever 15, the external force applied to the auxiliary lever 15 and the lever 5a disappears, the micro switch 5 is turned off, and the oil-burning equipment burns. To stop.

As described above, in the present invention, the full width of the side surface of the cartridge tank 1 can be used as an external force for actuating the microswitch 5, so that the lever 5a can be assisted by merely moving the cartridge tank 1 slightly upward. The pressed state is maintained through the lever 15, and only when the cartridge tank 1 is almost completely removed, there is no external force pressing the lever 5a.
The automatic fire extinguisher operates.

As described above, since the entire vertical width of one side of the cartridge tank serves as a pressing surface for pressing the lever of the microswitch, it is possible to automatically extinguish the fire only by slightly raising the cartridge tank from the tank storage part to check the remaining amount of oil. The apparatus does not operate, and it is possible to provide an oil-fired apparatus in which the automatic fire extinguishing apparatus operates only when the cartridge tank is almost removed from the tank storage section. Further, since the microswitch 5 is provided with an external force peeling mechanism constituted by the auxiliary lever 15 and the stopper 19, an excessive external force is applied to the microswitch body and the wiring board on which the microswitch is mounted. Can be prevented.

[0019]

As described above, according to the present invention, since the full vertical width of the side surface of the cartridge tank acts as a working surface for pressing the lever of the microswitch and continuing the combustion of the oil burning equipment, the remaining amount of oil is checked. For example, if the cartridge tank is slightly lifted out of the tank compartment, the automatic fire extinguishing system will not operate.The automatic fire extinguisher system will be activated only when the cartridge tank is almost removed from the tank compartment. Thus, an oil-fired device excellent in usability can be obtained.

Further, it is possible to prevent an excessive external force from being applied to the components located inside the microswitch by the force applied to the side surface of the cartridge tank.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a state where a cartridge tank is housed in a tank housing part of the present invention.

FIG. 2 is an explanatory view in the process of taking out a cartridge tank from a tank storage section of the present invention.

FIG. 3 is a side view of a microswitch used in the present invention.

FIG. 4 is an explanatory view of the internal structure and operation of a micro switch used in the present invention attached to a storage case.

FIG. 5 is an exploded perspective view of the micro switch and the storage case of the present invention.

FIG. 6 is an explanatory view showing a state where a cartridge tank is stored in a conventional tank storage section.

FIG. 7 is an explanatory view showing a state where a cartridge tank is being removed from a conventional tank storage unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cartridge tank 2 Tank storage part 5 Micro switch 5a Lever 15 Auxiliary lever 19 Stopper

Claims (3)

[Claims] 1. A cartridge tank capable of being retracted, a tank storage section for storing the cartridge tank, and a fuel tank which burns when a switch is pressed and stops burning when the switch is released. An oil-fired appliance comprising a microswitch linked to withdrawal, wherein when the cartridge tank is stored in the tank storage section, an upper side surface of the cartridge tank presses the microswitch. And oil burning equipment. 2. A cartridge tank which can be retracted, a tank accommodating section for accommodating the cartridge tank, and a cartridge which burns when a switch is pressed and stops burning when the switch is released. In a petroleum combustion device comprising a micro switch linked to withdrawal and withdrawal, an auxiliary lever for increasing an operation stroke of the lever is provided on a lever of the micro switch, and the auxiliary lever is provided protruding into the tank housing portion, An oil-burning device, wherein when the cartridge tank is stored in the tank storage section, the auxiliary lever is pressed by a side surface of the cartridge tank, and when the cartridge tank is removed from the tank storage section, the pressing of the auxiliary lever is released. . 3. A cartridge tank that can be removed, a tank storage section that stores the cartridge tank, and a cartridge that burns when a switch is pressed and stops burning when the switch is released. In a petroleum combustion device comprising a micro switch linked to withdrawal and withdrawal, an auxiliary lever for increasing an operation stroke of the lever is provided on a lever of the micro switch, and the auxiliary lever is provided protruding into the tank housing portion, When the cartridge tank is stored in the tank storage portion, a relief mechanism is provided for pressing the auxiliary lever by the side surface of the cartridge tank and releasing a pressing force when the side surface of the cartridge tank exceeds a position where the micro switch is operated. Oil burning equipment characterized by the above.